Resilient wheel.



- E. A. WALL. BESILIENT WHEEL. APPLICATION FILED FEB. 26, 1911.

1,001,71 4. PatentedAug. 29, 1-911.

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' ENOS A. WALL, on sA 'r LAKE airy, rrnn,

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' nnsrtrnn'r WHEEL.

Application filed- Feliruary 25, 1911, Serial No. 610,905.

of which the following is a specification.

My invention relates to resilient wheels. The object of the lIlVGIliJlOIllS to produce a resilient wheel which shall be Simple in construction and effective in cushioning the vertical and lateral motions of the vehicle.

These objects I accomplish by the construction shown in the accompanying drawings, in which wheel provided with my improvements. Fig. 2 is a cross-section therethrough on line 2-2., Fig. Tie a section on line 3-3. Fig.

3 is a sectional view showing a-modified form of spring. Fig. 4 is a like view of a further modification. F ig. 5 is a side elevae tion of aportion of a wheel with its outer: rim sectional.

A, designates the hub of any suitable construction from which radiate the spokes A united at their outer ends by the circular metallic band or. folly-A Between the spokes A the band or felly is provided with raised integral bosses A through which and the fellyextend non-threaded apertures.

- B, is the outer metallic rim preferably of channel form to receive a solid rubber tire C. This metallic rim B, is also provided on its inner side with raised integral bosses B, each having'a cup Z2, formed by an an .nular flange elliptical crosswise of the rim and in the center of which projects a stud or post 6.

D, are tubular rubber blocks elliptical in cross-section and seated in the elliptical cups b, with the studs or posts I), entering the outer ends of their bores. Surrounding the rubber blocks D, are. elliptical coil springs E with their outer ends also seated in the cups 6. At the inner endsof the composite springs D,'E,,centrally apertured elliptical cups F, are placed.

Extending through the band or felly A and its bosses'A are the adjusting bolts G, the outer ends of which project through the cups F into the inner ends of; the bores of the blocks D. The bolts G, are clamped to the felly-or band by inner and outer nuts 9, g and the bolts are further rovided-next t will be seen to theIcups F, with a nut 9 Specification of Letters Patent Patented Aug, 29, 1911,

Gr, to' secure the springs D, E, in place and give them their initial compression may be effected by the nuts 9, g, and that thereafter a further adjustment of the springs maybe had by simply turning, nuts 9 these latter-nuts serving also as bearings for the cups F, andlimiting their inward movement on the bolts G. A very nice adjust- 'ment' of the springs may therefore be had by means ofthe nuts 9 without the neces sity of loosening the'bolts' G.

It will, be noted that the studs or posts 6", apart a considerable distance to allow of the Figure 1 is a sectional side elevation of a a'ndthe inner ends of bolts G, are spaced longitudinal compression of'thesprings by the load, and furthermor'ethe posts'and bolts are not connected within the springs by any metallic sleeves or devices other than the springs themselves so that ther'springs are perfectly free to yield laterally, as-well as longitudinally. which is' essential to a perfectly working wheel. The elliptical shape of the springs transversely of the wheel is to stiffen them underv such lateral or sidewise strains.

While-I iave shown thesprings Figs. 1

and-2 as made up of inner rubbertubes or blocks andouter helical springs they may be formed of rubber tubes or blocks D, only,

as in Fig. 3, or of helical springs E, only,

as in' Fig. 4. 'The composite, spring D, E,

is however'preferable.v v 7 Referring to Fig. 5 it will be seen that it showsthe same arrangement of springs and.

adjusting devices, but the outer metallic riminstead of being in one continuous-piece as in Fig. l, is formed in section B around which the outer rubber tire C passes.

.What I'claim is: 1. A resilient wheel comprising, a hub and its connected metallic felly provided with apertures, the outer tire-carrying rim provided on its inner side with a series of cups having central studs or posts, tubular springs seated at their outer ends in said cups with the studs enterin their bores, centrally apertured cups fittlngthe inner ends of the springs, radial bolts extending through the felly apertures and through theapertured cups into the bores of the springs, nuts on the bolts at the inner and outer faces of the felly and a nut on every bolt against the outer face of the apertured cup; the ends of the bolts and rim-studs or posts being spaced apart and disconnected to allow the springs'toyield laterally, as Well as longitudinally.

2. A resilient Wheelromprising, a hub and its connected felly provided with :aper- ,tures, a tire carrying rim formedon its in- ,iner side with transversely arranged e1liptical .poekets having central studs, elliptical tubular springs seated-in the pockets with the studs entering their bores, centrally apertured elliptical cups fitting on the inner ends of the springs, radial bolts extending through the felly and cup apertures into the bores of the springs, nuts clamping the bolts to the inner and outer faces of'the I felly andother nuts on the bolts against the 5 In testimony whereof I aflix my signature 20 in presence of two witnesses.

ENOS A. WALL.

Witnesses:

PARKINS, Gno. E. W. EVANS.

v- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 'D. G. I 

